No, the logistregr you must be looking at probably came from the 12.7 demo version. It’s a custom-written prototype and it does not use ScalaPACK yet. The plan is to write a scalapack-based logistregr function, but not in the immediate future. Given what you want to do, you could talk to Paradigm4 Inc about possibly starting a commercial project - email info@paradigm4.com if interested.